
| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M1644H |
5M1644HX |
|
| Sizes | STD, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-metal | |
| Min Std Shaft Size | 2.1243in / 53.958mm | |
| Max Std Shaft Size | 2.1251in / 53.978mm | |
| Min Std Tunnel Size | 2.3228in / 59.000mm | |
| Max Std Tunnel Size | 2.3236in / 59.019mm | |
| Max Wall at Crown | 0.0985in / 2.502mm | 0.0980in / 2.489mm |
| Max Overall Length | 0.728in / 18.49mm | |
| Notes | Set contain 6 x 1648H and 4 x 1644H shells. Use 1648H shell in #4 position as upper and lower. | |
|
Diagram |
|
|

| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M1219H |
5M1219HX |
|
| Sizes | STD,.025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-Metal | |
| Min Std Shaft Size |
2.2435in / 56.985mm |
|
| Max Std Shaft Size |
2.2441in / 57.000mm |
|
| Min Std Tunnel Size |
2.4016in / 61.000mm |
|
| Max Std Tunnel Size |
2.4024in / 61.021mm |
|
| Max Wall at Crown |
0.0783in / 1.990mm |
0.0778in / 1.977mm |
| Max Overall Length |
0.8268in / 21.00mm |
|
| Notes | For engines equipped with thrust washers | |
|
Diagram |
![]() |
|

| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M1644H |
5M1644HX |
|
| Sizes | STD, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-metal | |
| Min Std Shaft Size | 2.1243in / 53.958mm | |
| Max Std Shaft Size | 2.1251in / 53.978mm | |
| Min Std Tunnel Size | 2.3228in / 59.000mm | |
| Max Std Tunnel Size | 2.3236in / 59.019mm | |
| Max Wall at Crown | 0.0985in / 2.502mm | 0.0980in / 2.489mm |
| Max Overall Length | 0.728in / 18.49mm | |
| Notes | Set contain 6 x 1648H and 4 x 1644H shells. Use 1648H shell in #4 position as upper and lower. | |
|
Diagram |
|
|

Part number 1T1219-STD
ACL thrust washers kit
Mitsubishi - 2.0 16V (4G63, 4G63T, 4G64-S4)

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1185H |
4B1185HX |
|
| Sizes | STD,.025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.7709in / 44.981mm |
|
| Max Std Shaft Size |
1.7715in / 44.996mm |
|
| Min Std Tunnel Size | 1.8897in / 47.998mm | |
| Max Std Tunnel Size |
1.8905in / 48.019mm |
|
| Max Wall at Crown |
0.0586in / 1.488mm |
0.0581in / 1.475mm |
| Max Overall Length |
0.8307in / 21.10mm |
|
| Notes | ||
|
Diagram |
![]() |
|

Part number 2T1644-STD
ACL thrust washers kit
Audi / VW - 1.6 1.8 2.0 (1983-2001)

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1606H |
4B1606HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.8802" /47.758mm |
|
| Max Std Shaft Size |
1.8810" /47.778mm |
|
| Min Std Tunnel Size |
1.9921" /50.600mm |
|
| Max Std Tunnel Size |
1.9929" /50.619mm |
|
| Max Wall at Crown |
0.0553" / 1.405mm |
0.0548" /1.392mm |
| Max Overall Length |
0.748" / 19.00mm |
|
| Notes | Bearing has 1.65mm oil hole at crown | |
|
Diagram |
![]() |
|

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1185H |
4B1185HX |
|
| Sizes | STD,.025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.7709in / 44.981mm |
|
| Max Std Shaft Size |
1.7715in / 44.996mm |
|
| Min Std Tunnel Size | 1.8897in / 47.998mm | |
| Max Std Tunnel Size |
1.8905in / 48.019mm |
|
| Max Wall at Crown |
0.0586in / 1.488mm |
0.0581in / 1.475mm |
| Max Overall Length |
0.8307in / 21.10mm |
|
| Notes | ||
|
Diagram |
![]() |
|

| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M1186H |
5M1186HX |
|
| Sizes | STD,.025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-Metal | |
| Min Std Shaft Size |
2.2435in / 56.985mm |
|
| Max Std Shaft Size |
2.2441in / 57mm |
|
| Min Std Tunnel Size |
2.4016in / 61mm |
|
| Max Std Tunnel Size |
2.4024in / 61.021mm |
|
| Max Wall at Crown |
0.0783in / 1.99mm |
0.0778in / 1.977mm |
| Max Overall Length |
0.8268in / 21mm (1186H/HX) 1in / 25.4mm (1187H/HX - Flange) |
|
| Notes | ||
|
Diagram |
1186H & HX - Positions 1, 2, 4, 5
1187H & HX - Position 3
|
|

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1606H |
4B1606HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.8802" /47.758mm |
|
| Max Std Shaft Size |
1.8810" /47.778mm |
|
| Min Std Tunnel Size |
1.9921" /50.600mm |
|
| Max Std Tunnel Size |
1.9929" /50.619mm |
|
| Max Wall at Crown |
0.0553" / 1.405mm |
0.0548" /1.392mm |
| Max Overall Length |
0.748" / 19.00mm |
|
| Notes | Bearing has 1.65mm oil hole at crown | |
|
Diagram |
![]() |
|
CT-1 is a Dry Film Lubricant coating that helps reduce friction and abrasive wear. It provides intermittent dry lubrication and is not affected by dust or dirt. CT-1 is specifically engineered to withstand the extreme conditions of today's high performance engines. Professional engine builders enjoy a higher level of confidence with increased embedability, strength and durability.

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1146H |
4B1146HX |
|
| Sizes | STD,.025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.7713in / 44.991mm |
|
| Max Std Shaft Size |
1.7717in / 45.000mm |
|
| Min Std Tunnel Size | 1.8898in / 48.000mm | |
| Max Std Tunnel Size |
1.8906in / 48.020mm |
|
| Max Wall at Crown |
0.0588in / 1.494mm |
0.0583in / 1.481mm |
| Max Overall Length |
0.925in / 23.50mm |
|
| Notes | ||
|
Diagram |
|
|

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1606H |
4B1606HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.8802" /47.758mm |
|
| Max Std Shaft Size |
1.8810" /47.778mm |
|
| Min Std Tunnel Size |
1.9921" /50.600mm |
|
| Max Std Tunnel Size |
1.9929" /50.619mm |
|
| Max Wall at Crown |
0.0553" / 1.405mm |
0.0548" /1.392mm |
| Max Overall Length |
0.748" / 19.00mm |
|
| Notes | Bearing has 1.65mm oil hole at crown | |
|
Diagram |
![]() |
|
CT-1 is a Dry Film Lubricant coating that helps reduce friction and abrasive wear. It provides intermittent dry lubrication and is not affected by dust or dirt. CT-1 is specifically engineered to withstand the extreme conditions of today's high performance engines. Professional engine builders enjoy a higher level of confidence with increased embedability, strength and durability.